''They look in a few books or on the computer and think they know what we are about, you know what I'm saying? This stuff they are doing is not coming from us. Portee said in a recent interview, speaking on behalf of those he regards as older, more authentic gang members. ''These Bloods on the street are young,'' Mr. They wore red, spouted gang slang and slashed and held people up - and all too often the city's black residents were their victims. The Bloods gang, he thought, had become too much like what the police had always derided it as - a constellation of barely connected street thugs in love with the cheap romance of coded language and symbolic tattoos. standing for Original Gangster, the founder of The United Blood Nation, or Bloods, and the best-known gang leader on the East Coast, left prison last June with a mission.